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Título: | The first substituted macrocyclic ligand Py2N4S2 containing four naphthylmethylene pendant-armed groups: synthesis and photophysical properties | Autor: | García, Verónica Aldrey, Anxela Castro, Catherine S. de Bastida, Rufina Macías, Alejandro Lodeiro, Carlos Melo, J. Sérgio Seixas de Núñez, Cristina |
Palavras-chave: | Macrocycles; Dinuclear complex; Stability constant; Naphthalene; Pendant-arms; Sensor | Data: | Out-2013 | Editora: | Elsevier | Citação: | GARCÍA, Verónica [et. al] - The first substituted macrocyclic ligand Py2N4S2 containing four naphthylmethylene pendant-armed groups: synthesis and photophysical properties. "Inorganic Chemistry Communications". ISSN 1387-7003. Vol. 36 (2013) p. 22-26 | Título da revista, periódico, livro ou evento: | Inorganic Chemistry Communications | Volume: | 36 | Resumo: | The synthesis of a pendant donor emissive macrocyclic ligand Py2N4S2 with up to four naphthylmethylene arms (L) has been achieved. Their derivative solid metal complexes (Co2 +, Ni2 +, Cu2 +, Zn2 +, Cd2 +, Hg2 + and Ag+) have been isolated and characterized. The photophysical properties of the free ligand L and their complexation behaviour have been investigated in solution. In dichloromethane, the free ligand presents two emission bands which are related to the monomer naphthalene emission and a red-shifted band attributable to ground state dimers (interaction between two naphthalene chromophores), which was further validated from time-resolved data, with bi-exponential decay with absence of dynamic components. UV–Vis spectroscopy has revealed a 2:1 binding stoichiometry for Co2 +, Cu2 +, Zn2 +, Hg2 + and Ag+. | URI: | https://hdl.handle.net/10316/27474 | ISSN: | 1387-7003 | DOI: | 10.1016/j.inoche.2013.07.019 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Química - Artigos em Revistas Internacionais |
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The first substituted macrocyclic ligand.pdf | 619.35 kB | Adobe PDF | Ver/Abrir |
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